I can't produce a reliable summary here — the "article text" provided is just the site's navigation menu and header boilerplate ("MusicFilmTravelArtNews Shop Mailing List… Cover Story | Yard Act"), not the actual story content about William Shatner. No details about the cancer diagnosis, treatment, or his daughter are included in the text you've given me.

Could you paste the actual body text of the article, or let me know if you'd like me to try fetching the URL directly?